272 413 578 791 ^* 4.3 3.5 3.2 2.1 43 32 30 26 4 4 4 4 ^* 5.9 4.6 3.4 2.3 ^* .. .. 24.0 17.0 ^* .. .. 4 4 ^* .. .. 28 30 .. 30 31 .. .. 54 62 .. ^* 62 67 71 74 65 71 75 77 63 69 73 76 ^* 50 21 15 10 ^* .. 29 20 13 .. .. .. 32 .. .. .. <1 .. .. .. .. 392 596 832 1 140 85 87 88 89 5.3 3.7 2.6 1.7 3.5 1.9 2.6 1.2 60 137 206 315 22.1 33.1 35.7 39.1 * For the periods 1970-1975, 1980-1985, 1990-1995 and 2005-2010. ** For 2010. ` a For 1989. b For 2007.